> Giving copyright ownership to the FSF will ensure that GNU OS will always
be free.
The GPL was designed to ensure that users of GPL-licensed software would
always be free.
> GNOME started out with the freedom mindset, but has become open source,
even though it is supposed to be a GNU project.
Sadly that is true. But I don't think the GNU project can force their views
onto everybody. If the GNOME developers chose to use that term we can't force
otherwise. We can encourage them to use the term "Free Software" though.
> The FSF cannot fix GNOME because, as far as I understand, it does not own
the GNOME copyright.
But even if they did own the copyright to GNOME, the GPL gives the GNOME devs
the freedom to then modify and then share a fork of GNOME.
> The best way to create GNU OS is for an existing free distribution to give
its copyright ownership to the FSF and change its brand to GNU.
Most of the software in Trisquel is written by people that aren't part of the
Trisquel project at all. For example, LibreOffice, Abrowser (Firefox), X.org,
Linux patched by FSFLA, etc. There wouldn't be much copyright to transfer
because Ruben and other Trisquel maintainers haven't written a significant
part of it. It is all licensed by others.
GNU asks developers to transfer copyright ownership so that they can stop
large businesses from distributing it without the source code and preventing
users from running freely. That's the only reason, as far as I know.